NGC 6946 (Fireworks galaxy) and NGC 6939 open cluster, Dan_Paris

NGC 6946 (Fireworks galaxy) and NGC 6939 open cluster

NGC 6946 (Fireworks galaxy) and NGC 6939 open cluster, Dan_Paris

NGC 6946 (Fireworks galaxy) and NGC 6939 open cluster

Equipment

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Acquisition details

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Description

Technical data :
200/800 custom newtonian astrograph with Romano Zen optics and carbon fiber tube
TS 2.5" Riccardi-Wynne corrector
ASI1600mm + ZWO LRGB filters
Guiding : ZWO OAG  + ASI120mm mini + AsiairV1
Luminance : 215*30sec at unity gain and T=-10°C
Chrominance : 60*30sec at unity gain  and T=-10°C for each RGB filter
Conditions : Bortle 7 skies in Paris' suburbs (20km from the Eiffel tower), average seeing
Some issues with autoguiding
Capture : 08/14/2021

Comments

Histogram

NGC 6946 (Fireworks galaxy) and NGC 6939 open cluster, Dan_Paris